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Ugnius M.

Ugnius M.

Full-Stack AI Engineer | AI Chatbots, Agents, ML, Automation

I am AI Software engineer with 5+ years of experience building software and AI systems for clients. I’ve worked with global brands like Coca-Cola and Danske Bank. I take projects A → Z: from the first conversation, through architecture, development and handover, fully deployed, and ready to use. I develop modern web applications integrated with backend systems and AI engineering. 📌 Areas I support - AI agents - RAG & LLM systems - Dashboards and Analytics - Automation workflows - Internal AI Tools & Chatbots - Web Applications - Design the system architecture - Build clean, scalable backends & APIs - Build frontends dashboards & admin UIs - Deploy using Docker, cloud, CI/CD - Deliver ready-to-use software 🤝 We will be a good fit if: - You need someone knowledgeable in AI + backend + frontend - You require automated workflows - You want AI to save time - You want someone to explain complex topics and systems clearly 🛠 Core tech stack (real-world) AI & Data Python, RAG, OpenAI, LLMs, BM25, embeddings, prompt engineering Backend Java, C#, Go, Python, REST & event-driven systems Frontend React, Angular, TypeScript, dashboards & admin panels Infra & DevOps Docker, Kubernetes, CI/CD, AWS, Azure, Terraform Databases PostgreSQL, MongoDB, Cassandra, Neo4j 📞 Free intro call We’ll discuss your idea and see if we can work together

🇱🇹Vilnius, Lithuania$50/hr100% JSS5.00 (2)Since Feb 2026

Earnings and projects

MRR
$772

Last 6 months ÷ 6

World#59,524 / 412k
🇱🇹Country#54 / 452
Revenue, last 30 days
$0

Last 6 months: $4.6k

Total earnings
$4.8k
World#258,558 / 412k
🇱🇹Country#272 / 452
Per project
$2.4k

$4.6k in the last 6 months

World#67,129 / 412k
🇱🇹Country#80 / 452
Projects, last 6 months
1
100% fixed0% hourly
World#128,092 / 412k
🇱🇹Country#126 / 452
Projects in all
2
100% fixed0% hourly
World#328,886 / 412k
🇱🇹Country#370 / 452

Earnings, last 30 days

$4.8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$4,700$4,750$4,800$4,850Oct 8Oct 23Nov 7

Skill rankings: Top 17% in ChatGPT API Integration

Ranked by MRR among everyone on Upwork with the skill.

  1. #163ChatGPT API Integration984 freelancers · 🇱🇹 #1Top 17%
  2. #251Vector Database1,142 freelancers · 🇱🇹 #1Top 22%
  3. #391Web Application Development2,030 freelancers · 🇱🇹 #1Top 19%
  4. #535Chatbot Development3,106 freelancers · 🇱🇹 #1Top 17%
  5. #590AI Implementation2,382 freelancers · 🇱🇹 #1Top 25%
  6. #632Large Language Model2,726 freelancers · 🇱🇹 #2Top 23%
  7. #723Back-End Development4,183 freelancers · 🇱🇹 #3Top 17%
  8. #850REST API5,062 freelancers · 🇱🇹 #3Top 17%